Improvement in three-horse equalizers



F. E. BARR.

Draft Equalizer.

Patented June 8, 1869.

W/T/Y'SSES iituitrd get-aim itlztiwt "Gtiiiiire.

FRANK E. BARR, OF ALBION, ASSIGNOR TO HIMSELF AND JULIUS J. BARR, OFELBA, NEW YORK.

Letters Patent No. 90,915, dated June 8, 1869.

The Schedule referred to in these Letters Patent and-making part cf thesame.

7 To all whom it may concern Be it known that I, FRANK E. BARR, ofAlbion, in the county of Orleans, and State of New York, have invented anew and useful Three-Horse Equalizer; and I do hereby declare thatthefollowing is a full and exact description thereof, reference beinghad to the accompanying drawings, and to the letters of reference markedthereon, in which Figure 1 represents the equalizer as attached to thedouble-tree, and

Figure 2 represents the device by itself.

Similar letters of reference indicate corresponding parts.

My invention relates toa device for equalizing the draught of threehorses, when hitched to the same load, and consists -in attaching to thecentre of the double-tree a grooved pulley, and to the load a similarpulley, and running a chain, extending from the centre whifiletree, overthe said pulleys, in such a manner that the draught of the centre horsewill be exactly the same as that of each of the side horses.

In the accompanying drawings 'A represents. a grooved pulley, providedwith the hands a, extending across its centre on both sides, and formingits bearings.

The ends of these bands are connected by the guard c, which extends halfway around the circumference of the pulley.

The pinion of the pulley is clasped by the clevis d, by means of whichthe pulley is attached to the clevis which are attached thewhiflfletrees- O G.

I) is a grooved pulley, made exactly like the pulley A, and providedwith similar cross-bands and guard. y is a t-hree-pronged clev'is, thedouble-pronged end of which clasps the ends of the pinion of the pulley1). The clevis g is attached to the load' at the point marked 0:.

To the single end of this clevis is attached the chain H, which extendsfrom thence back, up and around the pulley A, under the guard c, whichholds it in the groove of the pulley, and from thence back, up andaround the pulley D, under its guard,-aud from thence on to the clevisIt, in the centre of the middle whifiietree 0', to which it is attached.

By, this arrangement, each of the three i horses at tached to thewhiffietrees O, O, and 0, receive, re-

spectively, exactly one-third of the draught.

What I claim as my invention, and desire to secure by Letters Patent, is

A three-horse equalizer, composed of the grooved pulleys A and D, withtheir hands a and guards c, the chain H, and clevises (Z, c, g, and 71-,together with the double-trees O, O, and 0',- combined and arranged inthe manner shown, and for the purposes herein set forth and described. v

FRANK E. BARR. Witnesses;

SETH S. SPENCER, JOHN P. GIBBS.

